I've owned both frames and like the 4D better because it has more feel. They both are great control and feeling frames but the 4D edges it out slightly in feel. Both weigh the same so if you are an advanced player you will want to add lead weight to it. I added 18 inches of the Babolat lead tape: 5 inches at the 3 and 9 positions plus eight inches inside the pallet. It plays awesome now with the added stability. The plowthrough and feel with the added weight rocks. You can feel the ball being crushed when you swing freely. The best thing is that neither frames hurt my arm no matter how hard or long I hit.